From: Michael Schmitz <schmitzmic@gmail.com>
To: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Linux/m68k <linux-m68k@vger.kernel.org>,
John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>,
Andreas Schwab <schwab@linux-m68k.org>
Subject: Re: [PATCH v6 1/2] m68k/kernel - wire up syscall_trace_enter/leave for m68k
Date: Tue, 29 Jun 2021 10:16:00 +1200 [thread overview]
Message-ID: <aeac601a-a6ff-678b-83dc-48dacb430ec3@gmail.com> (raw)
In-Reply-To: <CAMuHMdWoX=6Yf7MZXR92Q3APYixY5MDM6MW_UUf0DO2+oDkHAQ@mail.gmail.com>
Hi Geert,
On 28/06/21 7:25 pm, Geert Uytterhoeven wrote:
> On Thu, Jun 24, 2021 at 2:46 AM Michael Schmitz <schmitzmic@gmail.com> wrote:
>> m68k (other than Coldfire) uses syscall_trace for both trace entry
>> and trace exit. Seccomp support requires separate entry points for
>> trace entry and exit which are already provided for Coldfire.
>>
>> Replace syscall_trace by syscall_trace_enter and syscall_trace_leave
>> in preparation for seccomp support. Check return code of
>> syscall_trace_enter(), and skip syscall if -1. Return code will be
>> left at what had been set by ptrace or seccomp (in regs->d0).
>>
>> No regression seen in testing with strace on ARAnyM.
>>
>> Signed-off-by: Michael Schmitz <schmitzmic@gmail.com>
> b
> Thanks for your patch!
>
>> arch/m68k/kernel/entry.S | 8 +++++---
> We need similar changes to arch/m68k/68000/entry.S and
> arch/m68k/coldfire/entry.S
Do you have a current defconfig for 68000? I've test compiled my patch
with two coldfire defconfigs, but could not find one for m68kclassic ...
Cheers,
Michael
>
>> arch/m68k/kernel/ptrace.c | 17 -----------------
>> 2 files changed, 5 insertions(+), 20 deletions(-)
> Gr{oetje,eeting}s,
>
> Geert
>
next prev parent reply other threads:[~2021-06-28 22:16 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-24 0:45 [PATCH v6 0/2] Add kernel seccomp support for m68k Michael Schmitz
2021-06-24 0:45 ` [PATCH v6 1/2] m68k/kernel - wire up syscall_trace_enter/leave " Michael Schmitz
2021-06-28 7:25 ` Geert Uytterhoeven
2021-06-28 20:52 ` Michael Schmitz
2021-06-28 22:16 ` Michael Schmitz [this message]
2021-06-29 7:31 ` Geert Uytterhoeven
2021-06-29 7:35 ` Greg Ungerer
2021-06-29 7:46 ` Michael Schmitz
2021-06-24 0:46 ` [PATCH v6 2/2] m68k: add kernel seccomp support Michael Schmitz
2021-06-28 7:23 ` Geert Uytterhoeven
2021-06-28 20:17 ` Michael Schmitz
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